Clamping device.



Patented May16,1916.

THE CflLUMDIA PLANOURAPH c0., WASHINGTON, D. C.

UNITED STATES PATENT OFFICE.

PASCAL J. SHAMPAY, OF CHICAGO, ILLINOIS, ASSIGNOR TO SHAMPAY BROTHERS, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

CLAMPING DEVICE.

Application filed June 19, 1914, Serial No. 846,061.

To all whom it may concern Be it known that I, PASCAL J. SHAMPAY,

a citizen of the United States, residing at vice, more particularly described as a carpet clamping device, and is used in connection with a cleaning machine such, for example, as that disclosed in my co-pending application Serial No. 745,134, filed January 30, 1913, in which the subject matter of this application was set forth with the exception of a clamping bar withdrawing spring, which is added hereto.

The present invention has for its principal object to provide a new and improved carpet clamping device for holding the end of a rug or carpet firmly, in connection with a movable member for drawing the rug or carpet through a cleaning machine.

Another object of the invention is to provide a clamping device of this kind in which the clamping slot will be closed not only adjacent the carpet itself but beyond the sides thereof, to prevent cleaning fluid and dirt from accumulating in the clamping slot.

To the attainment of these ends and the accomplishment of other new and useful objects, as will be hereinafter set forth, the invention consists in the features of novelty in the construction, combination and arrangement of the several parts generally shown in the accompanying drawings and described in the specification, and more particularly pointed out in the appended claims.

In the accompanying drawing, Figure 1 is a sectional view of a clamping device con-' structed in accordance with the principles of my invention and applied to the drum of a cleaning machine; Fig. 2 is a sectional view on the line 22 of Fig, 1; Fig. 3 is a sectional view on the line 33 of Fig. 1;

Fig. & is a sectional view on the line 4 1'- of Fig. 2; Fig. 5 is a sectional view on the line 5-5 of Fig. 3, and Fig. 6 is a view on the line 6-6 of Fig. 3.

It is desirable toclamp the edge of the carpet very firmly for drawing the carpet through a cleaning machine, and at the same time providing means for quickly clamping and releasing the carpet. It is also de- Specification of Letters Patent. 7

Patented May '16, 1916.

Renewed October 8, 1915. Serial No. 54,887.

sirable to provide a clamping device in which not only the slot adjacent the carpet is closed, but also the slot at the sides of the carpet, if it should not happen to eX- tend the full width of the clamping device. The present invention is particularly deslgned and adapted to accomplish these results.

A rotatable drum 9, or other corresponding movable device, is formed with a slot 10 through which the extremity of a carpet or .rug 11 is inserted. At the inside of the slot, the drum in the present exemplification -ofthe invention is provided with channels 1 12, which define. the interior of the slot. In

these channels a clamping bar 13 is movable, whlch carries on its outside edge a strip I of flexible, compressible material 14, such as rubber or the like. This slot is preferably disposed adjacent one of the spokes of the drum, so that the spoke may be bifurcated to encompass the channels and the slot. Supported by the channels at their inner sides are bearings 15, through which extend pivot pins 16, upon which cams 17 are pivoted. These cams each have a surface which is adapted to engage the clamping bar 13 to force it and the compressible strip 14 outwardly into clamping relation, and they are also provided with arms which are connected to a common bar 18 to move the cams in unison. Preferably, the clamping bar 13 is formed with raised clamping sur- I faces 19 disposed opposite the cams. The bar 18 is formed with offsets 20, so that it will be free from engagement with the arms or spokes 21 of the drum.

In order to move the cam operating bar 18, slotted members 22 are mounted adjacent one end of the drum, in line with the bar 18, and a block 23 is provided with pins 24; which project through the slots of the members 22, and with an internal screw thread. The extremity of the bar 18 is connected to the projecting pins 24:, so that the movement of the blockin the slotted members 22 causes a corresponding movement of the bar 18. A screw 25 is movable through the threaded portion of the block 23, and has a hand wheel 26 at the outer end thereof for rotating-the screw, with a collar 27 for holding the screw in place, so that the block will be moved upon its rotation. It is readily understood that when the hand wheel 26 is rotated, the block 23 will be moved accordingly and the bar 18 correspondingly moved to place the cams 17 in or out of clamping position.

As constructed, the cams 17 apply the clamping bar 13 but do not withdraw it, and therefore pins 28 are secured to the channels 12 at spaced distances thereon, to each of which a spring 29 is attached, one end of which bears against one of the channels and the other end of which is connected with the clamping bar 13, so that as soon as the cam-operated bar 18 is moved to release the cams from engagement with the clamping bar 13, the springs 29 will act to retract the clamping bar, thereby drawing the compressible strip 1 1 from engagement with the inserted edge of the carpet and permitting the carpet to be withdrawn.

I claim:

1. In a cleaning machine, a movable drum for carrying the article to be cleaned having a slot of sutlicient length to receive an end of the article, and compressible means within the drum movable outwardly toward the edges of the slot to bind the end of the article in the slotted portion of the drum.

2. In a cleaning machine, a movable memher for carrying the article to be cleaned having a slot extending longitudinally thereof to receive an end of the article, means for securing the said end of the article in the slotted portion of the member, comprising a compressible member, and apparatus for binding the end of the article between the compressible member and the side of the slot of the movable member.

3. In acleaning machine of the class de scribed, the combination of a movable member for carrying the article to be cleaned having a slot extending longitudinally thereof to receive an end of the article, a compressible member adjacent the slot of the movable member, a shiftable bar to which the compressible member is attached, and a device for shifting the bar and the compressible member to bind the end of the article to be cleaned between the compressible member and the side of the slot of the movable member.

4. A clamping device, comprising a slotted member into which the article to be clamped is inserted, a compressible member within the slot. a bar to which the compressible member is attached, cams to engage the bar, and means to move the cams to engage the bar for moving the compressible member against the inserted end of an article to be' clamped and against the edge of the slot.

5. A carpet clamping device, comprising Ooplu of thin patent may he obtained for five cents each, by addreuing the Commissioner 0! 'l ntoltl a a member with a slot into which the end of the carpet may be inserted, a movable bar, a compressible substance attached to the bar, cams to engage the bar, and means to engage the cams and to move them simultaneously to clamp the end of the inserted carpet against the edge of the slot, the com:

pressible member closing the slot against the admission of foreign material.

6. A carpet clamping device, comprising a member with a longitudinal slot into which an end of the carpet is inserted, a movable bar, a compressible member attached to the bar adapted to engage the inserted edge of the carpet :and to fill the slot where the carpet is inserted and atthe sides of the slotted member beyond the carpet, means to move thebar into clamping position, and a spring for withdrawing the bar from clamping position when said means is released.

7 In a carpet cleaning device, the combination of a slotted drum into which the end of the carpet may be inserted, a clamping bar, a rubber strip attached to the bar, cams pivotally connected to the drum and adapted to engage the bar for moving it into clamping position, a rod connected to the cams. means to move the bar, and springs,

attached to the drum and to the clamping bar for withdrawing the clamping barwhen the cam-moving bar is released.

8. A carpet clamping device, comprising a member with a slot into which the end of a carpet is inserted, a clamping bar movable toward and from the slot, a compressible strip secured to the bar adapted to close the slot adjacent the carpet and on both sides thereof when'it is clamped in the slot, pivotallv mounted cams to engage the clamping bar, a bar for connecting the cams to move them simultaneously, a block connected to the cam-moving bar at one end,'a screw for operating said block. a hand wheel connected with the screw for moving the block in either direction, and springs at.- tached to the member for withdrawing the clamping bar from clamping position when the cam-moving bar is moved to release the cams from engagement with the clamping bar. I

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 15th day of June, A. D. 1914;.

PASCAL J. SHAMPAY.

Witnesses:

CHARLES H. SEEM, KENT W. WONNELL.

Washington, D. G. 

